CRL 3/8" Closed Cell Backer Rod - 100 Foot Roll

The CRL Closed Cell Backer Rod is a highly effective solution for controlling sealant application thickness and improving joint design.
This round, flexible polyethylene foam is compatible with all cold-applied sealants and features a non-bonding surface that eliminates the need for an additional bond breaker.
Available in diameters from 1/4" to 2" (7 to 50mm), the backer rod is designed to prevent excessive sealant use by serving as a backing material, while also allowing for movement and flexing to reduce stress at adhesion points.
Its unique properties, including water resistance and a temperature range of -45°F to 160°F (-43°C to 71°C), make it ideal for various applications such as expansion joints, curtain walls, and construction partitions.
Ensure proper size selection for the best performance and store in a well-ventilated area away from direct sunlight and heat sources.